The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for rehash is "to discuss again.", the definition for heinous is "Shockingly evil.", and the definition for elusive is "Hard to grasp."

The definition for deferment is "The act of delaying." Used in a sentence: Sybil was frustrated by the deferment of her much anticipated vacation. The definition for disconcert is "to throw into confusion.", the definition for recrimination is "A retaliatory accusation.", and the definition for adversary is "One who opposes or resists."

The definition for raucous is "Noisy, rowdy." Used in a sentence: Serena, who preferred quiet conversation, left the rancous party. The definition for intricate is "having complex and interrelated parts.", the definition for stern is "Harsh, severe.", and the definition for fidelity is "State of being faithful."

The definition for pallid is "Lacking color." Used in a sentence: The nurse was worried by the patient's pallid face and shallow breathing. The definition for futile is "without purpose, completely ineffective.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for defiant is "Showing bold resistance."

The definition for pretense is "False intention or purpose." Used in a sentence: The jewel thief entered the mansion under the pretense of fixing a leaky faucet. The definition for scapegoat is "someone who bears the blame for others.", the definition for elusive is "Hard to grasp.", and the definition for commemorate is "To mark by a ceremony."